21141672504 has 32 divisors (see below), whose sum is σ = 52955272320. Its totient is φ = 7033745376.

The previous prime is 21141672499. The next prime is 21141672527. The reversal of 21141672504 is 40527614112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829612 + ... + 854715.

It is an arithmetic number, because the mean of its divisors is an integer number (1654852260).

Almost surely, 2^21141672504 is an apocalyptic number.

21141672504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21141672504 is an abundant number, since it is smaller than the sum of its proper divisors (31813599816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141672504 is a wasteful number, since it uses less digits than its factorization.

21141672504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684859 (or 1684855 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 21141672504 in words is "twenty-one billion, one hundred forty-one million, six hundred seventy-two thousand, five hundred four".